KGS is the #1 web site for playing go over the internet. Visit now!
Yes, I really am that awesome.
No longer produce the game? Dang. My kids love this one.
For helpful advice - you could make your own cards fairly easily. Not just the missing ones, they would look different, but a full set of cards by just printing scans onto heavy glossy paper then cutting with a papercutter. Since the cards aren't shuffled much or handed around, that should be good enough.